Data Cleaning Exercises

Input table:Inputs are read-only. Every step works on a copy.
Input table tickets, rows 1 to 13 of 13
#
1tx6ldempty
2t1bmfPhone· (raw value "Phone ")
3t6s3mTELEPHONE
4t7f5e·email (raw value " email")
5tsvpjWeb Chat
6ta4ene mail
7tacytWebChat· (raw value "WebChat ")
8t95p3·· (raw value " ")
9t9ulvchat
10t9k3me-mail⇥ (raw value "e-mail\t")
11tzj97missing
12t22bjTELEPHONE
13tk313web-chat

Playground: 13 input rows → 13 rows after your steps. Nothing here is graded, and your steps are saved in this browser only. Export the pipeline to keep a copy.

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